Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Chunyu Hu 475bb3c69a tracing: Fix kmemleak in tracing_map_array_free() ... kmemleak reported the below leak when I was doing clear of the hist trigger. With this patch, the kmeamleak is gone. unreferenced object 0xffff94322b63d760 (size 32): comm "bash", pid 1522, jiffies 4403687962 (age 2442.311s) hex dump (first 32 bytes): 00 01 00 00 04 00 00 00 08 00 00 00 ff 00 00 00 ................ 10 00 00 00 00 00 00 00 80 a8 7a f2 31 94 ff ff ..........z.1... backtrace: [<ffffffff9e96c27a>] kmemleak_alloc+0x4a/0xa0 [<ffffffff9e424cba>] kmem_cache_alloc_trace+0xca/0x1d0 [<ffffffff9e377736>] tracing_map_array_alloc+0x26/0x140 [<ffffffff9e261be0>] kretprobe_trampoline+0x0/0x50 [<ffffffff9e38b935>] create_hist_data+0x535/0x750 [<ffffffff9e38bd47>] event_hist_trigger_func+0x1f7/0x420 [<ffffffff9e38893d>] event_trigger_write+0xfd/0x1a0 [<ffffffff9e44dfc7>] __vfs_write+0x37/0x170 [<ffffffff9e44f552>] vfs_write+0xb2/0x1b0 [<ffffffff9e450b85>] SyS_write+0x55/0xc0 [<ffffffff9e203857>] do_syscall_64+0x67/0x150 [<ffffffff9e977ce7>] return_from_SYSCALL_64+0x0/0x6a [<ffffffffffffffff>] 0xffffffffffffffff unreferenced object 0xffff9431f27aa880 (size 128): comm "bash", pid 1522, jiffies 4403687962 (age 2442.311s) hex dump (first 32 bytes): 00 00 8c 2a 32 94 ff ff 00 f0 8b 2a 32 94 ff ff ...*2......*2... 00 e0 8b 2a 32 94 ff ff 00 d0 8b 2a 32 94 ff ff ...*2......*2... backtrace: [<ffffffff9e96c27a>] kmemleak_alloc+0x4a/0xa0 [<ffffffff9e425348>] __kmalloc+0xe8/0x220 [<ffffffff9e3777c1>] tracing_map_array_alloc+0xb1/0x140 [<ffffffff9e261be0>] kretprobe_trampoline+0x0/0x50 [<ffffffff9e38b935>] create_hist_data+0x535/0x750 [<ffffffff9e38bd47>] event_hist_trigger_func+0x1f7/0x420 [<ffffffff9e38893d>] event_trigger_write+0xfd/0x1a0 [<ffffffff9e44dfc7>] __vfs_write+0x37/0x170 [<ffffffff9e44f552>] vfs_write+0xb2/0x1b0 [<ffffffff9e450b85>] SyS_write+0x55/0xc0 [<ffffffff9e203857>] do_syscall_64+0x67/0x150 [<ffffffff9e977ce7>] return_from_SYSCALL_64+0x0/0x6a [<ffffffffffffffff>] 0xffffffffffffffff Link: http://lkml.kernel.org/r/1502705898-27571-1-git-send-email-chuhu@redhat.com Cc: stable@vger.kernel.org Fixes: 08d43a5fa0 ("tracing: Add lock-free tracing_map") Signed-off-by: Chunyu Hu <chuhu@redhat.com> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>		2017-08-24 10:05:51 -04:00
..
blktrace.c	block: switch bios to blk_status_t	2017-06-09 09:27:32 -06:00
bpf_trace.c	bpf: extend bpf_trace_printk to support %i	2017-07-03 02:22:52 -07:00
ftrace.c	ftrace: Check for null ret_stack on profile function graph entry function	2017-08-24 10:04:01 -04:00
Kconfig	tracing: Rename update the enum_map file	2017-06-13 17:13:06 -04:00
Makefile	perf/core: Rename CONFIG_[UK]PROBE_EVENT to CONFIG_[UK]PROBE_EVENTS	2017-03-01 10:26:39 +01:00
power-traces.c
ring_buffer.c	ring-buffer: Have ring_buffer_alloc_read_page() return error on offline CPU	2017-08-02 14:23:02 -04:00
ring_buffer_benchmark.c	ring-buffer: Have ring_buffer_alloc_read_page() return error on offline CPU	2017-08-02 14:23:02 -04:00
rpm-traces.c
trace.c	ring-buffer: Have ring_buffer_alloc_read_page() return error on offline CPU	2017-08-02 14:23:02 -04:00
trace.h	trace: fix the errors caused by incompatible type of RCU variables	2017-07-20 09:27:29 -04:00
trace_benchmark.c	tracing: Have the trace_event benchmark thread call cond_resched_rcu_qs()	2017-04-17 15:21:19 -04:00
trace_benchmark.h	tracing: Have the reg function allow to fail	2016-12-09 09:13:30 -05:00
trace_branch.c	tracing: Add the constant count for branch tracer	2017-01-19 08:57:41 -05:00
trace_clock.c	sched/headers: Prepare for new header dependencies before moving code to <linux/sched/clock.h>	2017-03-02 08:42:27 +01:00
trace_entries.h	trace: make trace_hwlat timestamp y2038 safe	2017-05-08 17:15:15 -07:00
trace_event_perf.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2016-05-17 16:26:30 -07:00
trace_events.c	tracing: Add support for recording tgid of tasks	2017-06-27 13:30:28 -04:00
trace_events_filter.c	tracing/filter: Define op as the enum that it is	2016-11-14 16:42:59 -05:00
trace_events_filter_test.h
trace_events_hist.c	sched/headers: Prepare to use <linux/rcuupdate.h> instead of <linux/rculist.h> in <linux/sched.h>	2017-03-02 08:42:38 +01:00
trace_events_trigger.c	sched/headers: Prepare to use <linux/rcuupdate.h> instead of <linux/rculist.h> in <linux/sched.h>	2017-03-02 08:42:38 +01:00
trace_export.c
trace_functions.c	ftrace: Fix regression with module command in stack_trace_filter	2017-06-29 10:05:45 -04:00
trace_functions_graph.c	tracing/fgraph: Have wakeup and irqsoff tracers ignore graph functions too	2016-12-09 09:21:35 -05:00
trace_hwlat.c	trace: make trace_hwlat timestamp y2038 safe	2017-05-08 17:15:15 -07:00
trace_irqsoff.c	clocksource: Use a plain u64 instead of cycle_t	2016-12-25 11:04:12 +01:00
trace_kdb.c
trace_kprobe.c	A few more minor updates:	2017-07-13 13:17:19 -07:00
trace_mmiotrace.c	tracing: Expose CPU physical addresses (resource values) for PCI devices	2016-06-20 09:54:22 -04:00
trace_nop.c
trace_output.c	tracing: Add support for display of tgid in trace output	2017-06-27 13:30:28 -04:00
trace_output.h
trace_printk.c	tracing: Handle NULL formats in hold_module_trace_bprintk_format()	2016-06-20 09:46:12 -04:00
trace_probe.c	tracing/probes: Fix a warning message to show correct maximum length	2017-02-15 10:32:48 -05:00
trace_probe.h	perf/core: Rename CONFIG_[UK]PROBE_EVENT to CONFIG_[UK]PROBE_EVENTS	2017-03-01 10:26:39 +01:00
trace_sched_switch.c	tracing: Add support for recording tgid of tasks	2017-06-27 13:30:28 -04:00
trace_sched_wakeup.c	clocksource: Use a plain u64 instead of cycle_t	2016-12-25 11:04:12 +01:00
trace_selftest.c	sched/headers: Prepare for new header dependencies before moving code to <uapi/linux/sched/types.h>	2017-03-02 08:42:27 +01:00
trace_selftest_dynamic.c
trace_seq.c
trace_stack.c	tracing: Do note expose stack_trace_filter without DYNAMIC_FTRACE	2017-07-11 19:21:04 -04:00
trace_stat.c
trace_stat.h
trace_syscalls.c	tracing/syscalls: fix multiline in error message text	2016-09-29 10:25:23 +02:00
trace_uprobe.c	sched/headers: Prepare to use <linux/rcuupdate.h> instead of <linux/rculist.h> in <linux/sched.h>	2017-03-02 08:42:38 +01:00
tracing_map.c	tracing: Fix kmemleak in tracing_map_array_free()	2017-08-24 10:05:51 -04:00
tracing_map.h